H series routers don't support DNS flush

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electsystech

electsystech Posts: 61

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Sixth Anniversary

August 2025 edited August 2025 in USG FLEX H Series

When will we get the option to Flush DNS. The Gen 2 router CLI command
ip dns server cache-flush
Does not appear available on H series

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electsystech Posts: 61 Ally Member

August 2025
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This this an equivalent?
cmd dns proxy clear-cache

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Zyxel_Melen Posts: 4,905 Zyxel Employee

August 2025
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Hi @electsystech
Yes, you can use CLI command cmd dns proxy clear-cache to flush DNS.

Zyxel Melen

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